LAN to LAN Bridge

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marco114
Posts: 2
Joined: Tue Jul 10, 2018 2:21 pm

LAN to LAN Bridge

Post by marco114 » Tue Jul 10, 2018 2:28 pm

I have a question about this LAN to LAN Bridge:
https://www.softether.org/4-docs/2-howt ... Bridge_VPN

Let's say my:
WAN1 LOCATION is: 1.1.1.1/30
WAN2 LOCATION is: 2.2.2.2/30

and my
LAN is 8.8.8.0/21

Can it be setup so that all IPs route out of WAN1 location? All the LAN Ip's are public in my situation (public ISP web servers). But only WAN1 actually has the 8.8.8.0/21 IP Range.

So if someone wants to get to a Server at 8.8.8.40 and it is at WAN2, it would rouite INTERNET -> WAN1 -> BRIDGE -> WAN2 -> 8.8.8.40
also server at 8.8.8.40 to get out would go to WAN2 -> BRIDGE ->WAN1 -> INTERNET

Note these are all fake IPs.

centeredki69
Posts: 329
Joined: Wed Sep 18, 2013 1:49 pm

Re: LAN to LAN Bridge

Post by centeredki69 » Tue Jul 10, 2018 4:57 pm

What do you mean " All the LAN Ip's are public in my situation (public ISP web servers)"

Are these machines behind a NAT firewall?

WAN2 location WAN Public address 2.2.2.2/30 ( fake IP address)==> NAT ===> Private address range 8.8.8.0/21 Local LAN network ( Web servers)?

marco114
Posts: 2
Joined: Tue Jul 10, 2018 2:21 pm

Re: LAN to LAN Bridge

Post by marco114 » Tue Jul 10, 2018 7:50 pm

My physical router (an EdgeRouter Pro) has a /30 as it's primary WAN and it's advertising a /21 that we own. There is no NAT.

So the LAN is basically all Public IP Addresses (we own a /21 block, 2048 public IPs) that are public web servers.

I want to tunnel those IPs to another location because of space and put them on same LAN.

Will this work?

centeredki69
Posts: 329
Joined: Wed Sep 18, 2013 1:49 pm

Re: LAN to LAN Bridge

Post by centeredki69 » Tue Jul 10, 2018 8:30 pm

This is beyond my area of expertise. Hopefully someone else has an answer?

thisjun
Posts: 2458
Joined: Mon Feb 24, 2014 11:03 am

Re: LAN to LAN Bridge

Post by thisjun » Wed Jul 18, 2018 7:09 am

I think it's possible.
What problem do you have?

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